I will present two independent samples of extragalactic radio sources. The first sample is the low-frequency radio selected TOOT00 radio sources with flux density limit S151MHz ≳ 100 mJy and a median redshift z ~ 1.25. The second sample is the high-frequency radio selected SXDS radio sources with flux density limit S1.4GHz ≳ 2 mJy and a median redshift z ~ 1.1. Using multi-wavelength data in the optical, infrared and radio, I will present a comparison of their quantities in order to understand the nature of the faint radio-source population. I will explain why it is important to study faint radio sources, and what this study contributes to the already known picture of extragalactic radio sources and Active Galactic Nuclei.
2011 April 13, 13:30
Centro de AstrofÝsica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto